test:add gop_autogen for package data

gopls/internal/regtest/misc/definition_gox_test.go

@@ -10,7 +10,7 @@ const overloadDefinition1 = `
 -- go.mod --
 module mod.com
 
-go 1.21.4
+go 1.19
 -- def.gop --
 func add = (
 	func(a, b int) int {
@@ -22,6 +22,21 @@ func add = (
 )
 -- test.gop --
 println add(100, 7)
+-- gop_autogen.go --
+package main
+
+import "fmt"
+
+const _ = true
+func add__0(a int, b int) int {
+	return a + b
+}
+func add__1(a string, b string) string {
+	return a + b
+}
+func main() {
+	fmt.Println(add__0(100, 7))
+}
 `
 
 func TestOverloadDefinition1(t *testing.T) {
@@ -43,7 +58,7 @@ const overloadDefinition2 = `
 -- go.mod --
 module mod.com
 
-go 1.21.4
+go 1.19
 -- def.gop --
 func mulInt(a, b int) int {
 	return a * b
@@ -55,10 +70,32 @@ func mulFloat(a, b float64) float64 {
 
 func mul = (
 	mulInt
+	func(a, b string) string {
+		return a + b
+	}
 	mulFloat
 )
 -- test.gop --
 println mul(100, 7)
+-- gop_autogen.go --
+package main
+
+import "fmt"
+
+const _ = true
+const Gopo_mul = "mulInt,,mulFloat"
+func mulInt(a int, b int) int {
+	return a * b
+}
+func mul__1(a string, b string) string {
+	return a + b
+}
+func mulFloat(a float64, b float64) float64 {
+	return a * b
+}
+func main() {
+	fmt.Println(mulInt(100, 7))
+}
 `
 
 func TestOverloadDefinition2(t *testing.T) {
@@ -80,7 +117,7 @@ const overloadDefinition3 = `
 -- go.mod --
 module mod.com
 
-go 1.21.4
+go 1.19
 -- def.gop --
 type foo struct {
 }
@@ -100,6 +137,27 @@ func (foo).mul = (
 -- test.gop --
 var a *foo
 var c = a.mul(100)
+-- gop_autogen.go --
+package main
+
+const _ = true
+
+type foo struct {
+}
+
+const Gopo_foo_mul = ".mulInt,.mulFoo"
+func (a *foo) mulInt(b int) *foo {
+	return a
+}
+func (a *foo) mulFoo(b *foo) *foo {
+	return a
+}
+
+var a *foo
+var c = a.mulInt(100)
+
+func main() {
+}
 `
 
 func TestOverloadDefinition3(t *testing.T) {
@@ -121,29 +179,55 @@ const overloadDefinition4 = `
 -- go.mod --
 module mod.com
 
-go 1.21.4
+go 1.19
 -- def.go --
 package main
-type foo struct {
+
+const GopPackage = true
+
+type N struct {
 }
 
-func (f *foo) Broadcast__0(msg string) bool {
-	return true
+func (m *N) OnKey__0(a string, fn func()) {
+	fn()
+}
+
+func (m *N) OnKey__1(a string, fn func(key string)) {
+	fn(a)
+}
+
+func (m *N) OnKey__2(a []string, fn func()) {
+	fn()
 }
 -- test.gop --
-var a *foo
-a.Broadcast("hhh")
+n := &N{}
+
+n.onKey("hello", func() {
+	println("hello world")
+})
+-- gop_autogen.go --
+package main
+
+import "fmt"
+
+const _ = true
+func main() {
+	n := &N{}
+	n.OnKey__0("hello", func() {
+		fmt.Println("hello world")
+	})
+}
 `
 
 func TestOverloadDefinition4(t *testing.T) {
 	Run(t, overloadDefinition4, func(t *testing.T, env *Env) {
 		env.OpenFile("test.gop")
-		loc := env.GoToDefinition(env.RegexpSearch("test.gop", "Broadcast"))
+		loc := env.GoToDefinition(env.RegexpSearch("test.gop", "onKey"))
 		name := env.Sandbox.Workdir.URIToPath(loc.URI)
 		if want := "def.go"; name != want {
 			t.Errorf("GoToDefinition: got file %q, want %q", name, want)
 		}
-		if want := env.RegexpSearch("def.go", `Broadcast__0`); loc != want {
+		if want := env.RegexpSearch("def.go", `OnKey__0`); loc != want {
 			t.Errorf("GoToDefinition: got location %v, want %v", loc, want)
 		}
 	})